目的 探讨基质金属蛋白酶-1 (MMP-1)和膜型1基质金属蛋白酶(MT1-MMP)在胆囊癌血管生成拟态中的表达及临床意义.方法 收集手术病理确诊的原发性胆囊癌74例和胆囊腺瘤、慢性胆囊炎各10例的石蜡标本及相关临床资料,应用免疫组化测定上述病变组织的MMP-1、MT1-MMP表达.应用Kaplan-Meier生存比较、Cox风险模型分析与胆囊癌血管生成拟态(VM)的相关性和临床意义.结果 ①胆囊癌MMP-1、MT1-MMP表达明显高于胆囊腺瘤、胆囊炎(P<0.000 1);VM(+)胆囊癌MT1-MMP表达明显高于VM(-)胆囊癌(P=0.003 9),而MMP-1则无差别.②MMP-1表达与VM(-)胆囊癌的Nevin分期(P=0.003 6)、分化程度(P=0.010)、肝转移(P=0.003)和淋巴结转移(P=0.002)正相关;MT1-MMP表达与VM(-)或VM(+)胆囊癌的Nevin分期(P=0.013或P=0.033)、浸润深度(P=0.045或P=0.035)、淋巴结转移(P=0.046或P=0.025)和肝转移(P=0.030或P=0.027)正相关;MMP-1、MT1-MMP表达与VM(-)胆囊癌正相关.③VM(+)胆囊癌MT1-MMP表达在Nevin S3-s5期(P =0.000 1)、侵犯浆膜(P=0.001)、淋巴结转移(P =0.000 2)和肝转移(P=0.004)同样分组条件下分别明显高于VM(-)胆囊癌;MMP-1仅在肝转移组,VM(+)胆囊癌表达显著高于VM(-)(P=0.038).④无论在MMP-1、MT1-MMP单独表达阳性或二者均阳性,VM(+)胆囊癌患者术后5年生存期都明显短于VM(-)组(P=0.025 1或P=0.022 5或P=0.025 0).Cox多因素分析表明,VM、浸润深度、淋巴结转移、肝转移、手术方式是影响胆囊癌患者预后的独立因素.结论 胆囊癌MMP-1、MT1-MMP高表达,MT1-MMP表达与胆囊癌VM相关,MMP-1则与胆囊癌VM无关.MMP-1,MT1-MMP可作为评判胆囊癌Nevin分期、浸润深度、淋巴结或肝转移及判断预后的重要指标;而MT1-MMP还可作为判断胆囊癌否存在VM和VM胆囊癌预后的重要指标.
Objective To evaluate the expression of matrix metaUoproteinase-1 ( MMP-1 ) and membrane type-1matrix metalloproteinase (MT1-MMP) in human primary gallbladder carcinomas with vasculogenic mimicry (VM) and its clinical significance. Methods Seventy-four carcinomas, 10 adenomas and 10 chronic inflammatory lesions of the gallbladder underwent operation and histopathologically and their clinical-pathlogical confirmed data were studied and followedup. Immunohistochemistry (SABC) was used to determine the expression of MMP-1, MT1-MMP proteins in each paraffin section of every patient in vivo. Kaplan-Meier survival curves and Cox multiple factor were used to analyse the relation beteewn VM of gallbladder carcinomas and expression of MMP-1, MT1-MMP. Results (1) Expression of MMP-1 and MT1-MMP was increased significantly in carcinomas with or without VM than adenomas and inflammatory lesions of the gallbladder (P 〈 0.000 1 ) in. Eexpression of MT1-MMP in the gallbladder carcinomas with VM was increased significantly than that without VM〈 P = 0.003 9), without difference on expression of MMP-1 between VM ( + ) gallbladder carcinomas and VM ( - ) gallbladder carcinomas. (2) There is positive correlation between expression of MMP-1 and VM ( - ) gallbladder carcinomas in the cases of Nevin stage (P = 0.003 6), differentiation degree ( P = 0. 010) ,liver metastatis ( P = 0. 003 ) and lymph node metastases ( P = 0.002 ), the same correlation was observed between expression of MT1-MMP and VM ( + )/( - ) gallbladder carcinomas in the cases of Nevin stage (P =0. 013 or P =0.003 3) ,invasion depth (P =0.045 or P =0. 035) ,lymph node metastases (P =0.046 or P =0.025 ) and liver metastatis ( P = 0. 030 or P = 0. 027 ) ; MMP-1 expression was positively correlated with MT1 -MMP expression in VM ( - ) gallbladder carcinomas. (3) Expression of MT1-MMP in the same conditions of Nevin stage ( S3 - S5, P = 0. 000 1 ), serosal invasion ( P